Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Element “script” must not have attribute “async” unless attribute “src” is also specified or unless attribute “type” is specified with value “module”.
CSS: “min-width”: Too many values or values are not recognized.
CSS: “clip”: “none” is not a “clip” value.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “null"” for attribute “href” on element “link”: Illegal character in path segment: “"” is not allowed.
Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “xmlns:a” not allowed here.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Bad value “true” for attribute “async” on element “script”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Attribute with the local name “xmlns:a” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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